Molding sander



A. L. PAYTON MOLDING SANDER Aug.-16, 1949.

2 Sheets-Sheet 1 Filed Jan. 2, 1948 Y ww :E a.

A. L. P AYTON MOLDING SANDER Aug. 16, 1949.v

2 Sheets-Sheet 2 Filed Jan. 2, 1948 INVENTOR.

Patented Aug. 16! 1949 UNITED STATESv PATENT OFFICE` 2,479,506 MOI-.DING SANDER Andy LeslieY Payton, Bristol; '.lenn.V Application January 2, 19.48 Serial:1510.A 1.97; 3 Claims (Cl- 51e-1,38)

This.- invention relates to a moulding sander.A

A primary object of the invention is the pro: vision of a continuously operating sander vrhere-` by successive heights of mou-idling are, capable. of being sanded effectivelyin a relatively short PfQCrl f time all@ with. Illlrlllllllll effort Qn1 the part oi anoperator.v AYiurther object of the invention is the prov vision of a moulding sander` wherein lengths of moulding are successively conveyed in a directionA toward a sanding head and such moulding of the sanding head being subjected to the action of a sanded surface moving continuously in a direction opposite to, that in which the moulding is conveyed.

A, still turnier;Y object ei the invention is the provision of a moulding sander which is rela? tively simplerin cunstruotion, efficient in operation, and is oapable of manufacture and maintenance at. reletivelylew enst @other objects and advantages of the invention become apparent in the course of the fol-lows ins; detailed.- deserintien,L teken in eenneetien withVV the,y aeeernnenying drawings, wherein Eisure l' isV e. side elevational view 0i the iinprovd sander in accordance with a preferred structural embodiment thereof.

e tele plan view partially broken ervar-f Fie- 3 is en enlarged transverse sectional view in Planes Qi the l@reisen line- Sv en li'is- 1- l is. a sidel eleV-alQn-al View or? a guide-suppertine rede tire view| beine enlereed relative te Figures 1 ene 2- ligis e. side elevetienel viewV ef term 0f glldtfelllilltlllg r-Qdf lltilized sender structure,

Referring now in detail to thel drawings, a suitable tabl-eis providedV tor. supporting the various elements entering into the sander structure as another in the.

thereon,4 and such table includes a top I Q and sui-table supporting legs I I.

The table top I is provided with a channel I2 in the upper face thereof, and which channel extends throughout the length of the top, as is indicated in Fig. 2.

A, metal plate I3 rests upon the bottom of the channel lg'and is suitably secured therein,l and Y," are siiitebly secured te die t0n in. Overheneine relaties to the, Channel it and with their adjacent edges in spaced reletion, in the: provision of a slot I5;`

AA71sproclget wheel IS is supported at each end of the'4 channel l2 and is rotatably supported in a bracket l1 suitably secured to, the correspondu me, enc; of trie table top n1,y

t continuous sprocket la is engaged with the sprocket wheels I6 and with the run'thereof between the sprocket Wheels disposed Within the channel I2 and between the plates I3 and I4,

the fermer providing a wearing surface for the, chain.

The.. sprocket. la dene-nds below ten i0 end extends; through e. drive unit 19. whieh, is driven by n` :noter 20 The drive unit. may be of any desired ferm wherein e sprocket wheel. therein is engegeeble. with the chain I8, and verr-` ious size sprocket wheels may be utilized in the unit for providing a desired, speed of movement, of the chain in operation; moves in the direction of the. arrow in. Eis... 1. The Sprocket I8 is. provided with projections., 2| at de; siredl spaced intervals for a purpose later to ap-.r pear, and suon projections travel through the slot i5..

movement the sleeve,

A coil spring- 28 encircles the bar 2'I and has its opposite ends,- eneeged with the lower end ef sleeve 25 and a cellar 2te enl the ber 2,1, the spring thus eetine te urge tbe ber downwardly. The ber l1l is disposed over the slet l5 and eer--A ries et its. idw-er end e .rectangular Plate 30 to which any one of various moulding coniormerblocks 3l are reineveblr secured. as by screw belts 32- belt. 33. havinf e, sanded surface, and sutil belt extends ever e drive pulley 34, driven by a meter 3.5` vbeth ei' are supported substantially above the top. la at one end thereof by a suitable bracket 36.

The beit further engages en idler pulley tl suppentededieeent. the ,ther end; of the top. on a bracket 3Q pivotally supported at its lower end at 39 on a bracket rigidly secured to the` top connected to the shaft 41j of the pulley 31 and the lower end Oi the rod extends through a busli-` ing 43 in the portion 40 and is screw-threaded for cooperation therewith of an adjusting nut 44. A spring 45 is preferably disposed between the bushing 43 and a collar 48 on the rod 4l for maintaining the adjustment.

The belt 33 depends from the pulleys 34 and 31 and extends beneath and in engagement with the conformer block 3|, the belt at this point assuming the surface configuration of the block and frictionally engaging the adjacent moulding surface under the urge of spring 28, as is clearly indicated in Fig. 3.

The structure further includes a number of guides for maintaining the moulding M in a rectilinear path of movement over the plates I4 and beneath the block 3l, as well as a pair of belt guides 41 which are of elongated cylindrical form and extend transversely ofthe slot l5 and are disposed adjacent the sander head 22 at opposite sides thereof.

These belt guides are supported by rods 48 which include rectangular end portions 49 having apertures 50 for receiving vertical rods 5l projecting upwardly from bases 52 secured to the top i8. The rods 48 are provided with threaded apertures 53 for receiving screw bolts wherebythe rods as well as belt guides 41 are vertically adjustable on the rods 5l, The purpose of the belt guides 41.is to maintain the belt in proper position adjacent the conformer block 3|. the belt remaining at throughout its length from one guide 41 to the other, but between such guides the belt is deformed into conformity .with the block 3|, whereby the sanded surface of the belt engages the surface of the moulding M with uniform pressure for sanding same.

While, as shown in Figure 3, only the upper curved portion of the moulding is affected by the belt, the conformer block 3l may be of such form as to engage portionsof the belt with opposite sides of the moulding. The aforementioned guides for the moulding comprise a plurality of vertically disposed rollers 54 engageable with opposite sides of the moulding M and a pair of horizontally disposed rollers 55 engageable with the top of the moulding. The rollers 54 are supported by rods 58 which are receivable in upper or lower apertures 51, 58 in brackets 59 which fr are provided with suitable securing means 59 for retaining the rods therein.

The rollers 55 are supported by vertically adjustable rods 48, as above described in connection with therbelt guides 41.

An edge guide 60 is provided adjacent the sanding head 22 and is laterally adjustable as by cooperating slots and bolts 5l and 52.

From the above description, it will be apparent that a moulding sander is provided which i is highly eective, in that the chain I8 feeds successive lengths of moulding to the sanding head 22 at a speed of from 20 to 120 feet per minute, and the sanding belt 33, which moves in the direction of the arrow in Fig. 1 or opposite to the moulding, travels approximately 2000 feet per minute. Thus it will be seen that there is a high relative movement between the belt and mould.- ing and that the moulding is fed relatively fast through the machine, whereby a large quantity of moulding is capable of being sanded in a relatively short period of time.

While I have disclosed my invention in accordance with a single specific embodiment thereof, such is to be considered as illustrative only, and not restrictive, the scope-of the invention being defined in the following claims.

What I claim and desire to secure by U. S. Letters Patent is:

l. A moulding sander comprising an elongated relatively wide horizontal support, a relatively narrow channel in the upper face of the support in substantial spaced relation to the opposite side t edges thereof and extending throughout the length thereof, a metallic wear plate disposed on the bottom wall of said channel, a sprocket wheel rotatably supported adjacent to and beyond each of the opposite ends of the support, a sprocket chain operatively engaged with said wheels and having the upper run thereof disposed in said channel and resting on said wear plate, projections carried by said chain at predetermined intervals and projecting above the support for engaging the rear ends of successive sections of moulding, a sander head disposed above the support, a sanding belt extending about a pair of spaced pulleys supported above the support with the lower run of the belt extending between the support and said sander head, motor means for driving said chain and said belt, and a pair of metallic moulding-supporting plates secured to the upper face of the support in overhanging relation to said channel for confining the upper run of the chain therein, said plates having their adjacent overhanging edges spaced in the provision of a relatively narrow slot for receiving and guiding said projections.

2. A moulding sander according to claim 1, wherein said sander head includes a block having a lower surface of a formation corresponding with that of the moulding to be sanded and wherein the sanding belt engages said surface with a resulting deformation ofthe belt, and a vertically adjustable cylindrical guide disposed adjacent said sander head at each side thereof and extending transversely of the support for engaging the belt and confining the deformation thereof to the space between the guides.

3. A moulding sander according to claim 1, together with a plurality of vertically disposed roller guides disposed at each side of said channel for engaging opposite sides of the sections of moulding, a plurality of vertically adjustable horizontally extending roller guides for engaging the tops of the moulding sections, and an elongated edge guide mounted on the support for adjustment latf, erally thereof and disposed adjacent said sander head for engaging the corresponding sides of the moulding sections.

ANDY LESLIE PAYTON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,000,296 Sagerdahl Aug. 8, 1911 1,030,473 Kroeze June 25, 1912 1,927,330 Williams Sept. 19, 1933 1,949,565 Edwards Mar. 6, 1934 1,962,765 Crowley et al June 12, 1934 2,199,069 Fowler Apr. 30, 1940 2,250,720 Morris July 29, 1941 2,334,960 Roth Nov. 23, 1943 2,376,847 Glike May 22, 1945 2,408,648 Inman Oct. 1, 1946 2,421,289 Roth et al May 27, 1947 2,426,764 Czarnecki Sept. 2, 1947 

